Selfconsistent Method in Quantum Electrodynamics

Nonstationary Selfconsistent Solutions in Quantum Field Theory

Polaron problem is considered. Bogoliubov group variables for the spacetime translations group are defined. The scheme of secondary quantization for the scalar field interacting with charged quantum field is proposed. Scalar field is assumes to have nonzero classical component. Polaron is treated as a result of interaction of charged particle and neutral field classical component. The system st...

Calculation of Kolmogorov Entropy in Cavity Quantum Electrodynamics

In this paper Kolomogorov entropy of a simulated cavity quantum electrodynamics in a multi-partite system consisting of eight quantum dots in interaction with one cavity mode has been estimated. It has been shown that the Kolmogorov Entropy monotonically increases with the increasing coupling strength, which is a sufficient condition for chaotic behavior under ultrastrong coupling regime. The a...

Non-Perturbation Method on Quantum Electrodynamics (Atomic Shwinger-Dyson Method)

We proposed Relativistic Quantum Electrodynamics in matters under strong external fields obeying to Finite Schwinger Dyson Formalism. The original Schwinger-Dyson formalism (SD formalism) is generalized for the application to atoms, molecules and electron matters under external fields. Because the generalized formalism has some important differences from original SD formalism widely used in ele...

Quantum Electrodynamics in Graphene

Quantum quincunx in cavity quantum electrodynamics

We introduce the quantum quincunx, which physically demonstrates the quantum walk and is analogous to Galton’s quincunx for demonstrating the random walk. In contradistinction to the theoretical studies of quantum walks over orthogonal lattice states, we introduce quantum walks over nonorthogonal lattice states (specifically, coherent states on a circle) to demonstrate that the key features of ...